Container



Nov. 27, 1934. E, WATSON 1,982,557

CONTAINER Original Filed Jan. 19, 1952 3 Sheets-Sllee'fl l @NZ J2 all \\\f J4 ffii/k H k In? t I i i? UWV 3m UI'ni .I *,721

E. WATSON CONTAINER Nov. 27, 1934.

Original Filed Jan. 19, 1932 SSheets-Sheet 2 wir?? Nov. 27, 1934. E. WATSON 1,982,557

CONTAINER original Filed Jan. 19, 1952 3 sheets-sheet s ''Hml Patented Nov. 27, 1934 Edgar` wenn; Towson, essere; is" resse" assignments, to Th'e Nelsoil'oroi'atiom Balti= more', Md., a cbr-'poration of Maryland Application am 19, 19st so, sig-46' Renewed March 27, 1934 l 4 claims.` (ci 22a-131i This invention'l relates to improvements in containers, and more particularly concerns a container which may be formed from an original square blank by the provision of diagonal cutting 'and score lines thereon. ,l

One of the features of-l the presentY invention is the vprovision of a container having` closed vertical edges, and having, overlapping pairs of cover flaps, whereby the container may be closed and sealed by astandard closing machine.

Another feature ofthe present invention is the construction of such a container from a blank, with a Aminimum of waste.V o

Another feature oi the present invention is the construction of such a container from such a blank, in which the lower pair of cover flaps are supportod, evenwith a. filling of loose or bulk material, during the preliminary closing operations. A. n With-these and other objects in View,y an;` musT trative form' of blankfancl-` the container formed therefrom o are shown on thev accompanying drawings, in which:- r 4 Figure l anplan view. of a blank; n 4

Fie-tir 21S e persizegiive View Showingihe manner of folding the bottom,-sides, and corner iiaps during assembly,

ure 3 is a view of the completed and closed co'rfitai'iier;l l l M I o Figure 4 is aperspective view, onlalarger Ascale* than Figure 2,",showin'g the association of the corner flaps with the ver-ticalwalls. a l l Figure 5 is atransve'rse sectional view, showing the association rof the cover flaps with the vrtical wall naps, l o y a v Figure 6 isl transverse Lsectionalwview, on -,an enlarged scale, through theV top of the closed n v`ligure '7 is a plan view of a modil ed' forni of slank.` o t o Figure 8 is" a'. fyv'v f5(JfflsiOdilg t0 Fg 4', snowing the 'folding' of modified blank; o v .Figure' 9 is` a View" corresponding' toFigu'r 5', "showing the association of the' cover naps, vertaal wan nass, and gusjsets. o y arnese'- dr'awigs, "gare 1 shows 'that an li'gr'ially sfdla'blahk has f'rid' thereon pl'rlly" of Sebring liivefs'l, cinirisihg f twoV Sets lial fight alig'lsl Thse S'ets are aH at 45 lines denne a b't't'oiir B', sides s1 and s2,` ends l and --gerid cover flaps CE1 .and CE2, and s"'de' cover flaps CSI andA CS2, as well as the pairs or crner" flaps;I EF,'1K1-S F1'1V nmz-SH12, F2`1LSF21",'EF'22SF22, which latter are sep'f arated from one another by score lines l0 which f are preferably formed at the opposite side of the blank fromthe score lines aforementioned, and which extend at 90 to the edges of the original blank. It will be noted `that the score lines ber' 50 tween the corner flap ,portions EFll-EFlZ,` EF21--EF22, are slightly offset vtoward on'e another, relative to the samefend wall, than the corresponding lines of the bottomB and of the end cover flaps CE1-CE2, for the purpose herein- 65 after set forth. o,

Along the sides of theblank, substantially triangular notches having a-,right angle at the inner corner are provided bycutting away the material at the points 1l, 12.- The corners "of the original 70` blank arel cut raway at 13,114, so that the widths of the end and-,side lcover flaps areeach substantially one-,half the ,corresponding dimension of the bottom B, so that theedges ofthese flaps will meot and abut in the closed container. Y The blank so made is'then assembled by folding the junctions of the bottom,` side and end walls andthe ,corner iiaps as indicated in Figure2,`and continuingthe folding operations until thedsidemandpnd walls are at right angles ltothe bottom B. 'Iliepai-rsvof corner flap Walls EF11- SF11",etc.,fare thus folded flat against one another and` extendginwardwabove the `bottom B.` These paired aps may thenfvbe folded against one of thevertical walls;A for example the corner flaps EFllSFll may be folded againstthe side wall S1 (Figure 4), and the cover flaps are then secured inany,vsuitable manner as for example by the ystaples 15 Y This completes a container` having cover flaps attachedrto its four upper edges, and this container may now be loaded with anydesired mate'- rial the/usual manner. It will be particularly o noted that thevertical edgesbetween thev side and end walls are'closed from bottom to top, and 95 that there is no passagegfor material oreven air below `Vhe topledgehofthe vertical walls, except through thematerial itself.

, Owing to theslightly greaterwidth ofgthe bottom B and the end cover flaps CE1 and CE2, than 100 the; correspf'gnding-v widthpf the kend walls El, E2,

the corner flaps EF1l-SF1l, etc'. will thuslie inside of the sidewallsnto provide ledges 16 adjacent' each side wall upon` which f the corre#- spondingcover flaps GElfCEZ may rest, and thus be prevented against downward movement into the container duringclosing. Since, the cover flaps are all free toopen and close during loading,

it is obvious that the ordinaryclosing machine maybe employed for bringing the endcover flaps together by staples 15 in a normal stitching ma? chine, and the container thus formed may be loaded and closed in normalloading and closing apparatus.

the packing of bulk material, and further since the cover aps are sealed to one another, the container is assured against pilfering without destruction of parts or such damaging that the fact of a non-intact package is immediately apparent upon simple inspection. l

While the several vertical walls have been referred to as side and end walls, it will be understood that these yterms are interchangeable, and that a containerv of any desired dimensionin width, length and height may be constructed, except that in the preferred form the horizontal dimension of the cover 'flaps which are first to be folded into position are Vslightly greaterA than the corresponding dimension of the vertical walls located beneath them. Further, the parts have been described with respectto a container, and referring to the portion B as the bottom, although it is obvious that the container'may be turned through various angles and into other positions during assembly, loading, closing, and shipment.

I'he blank shown in Figure 1 may be constructed of a sheet of corrugated material in which the lines ofrcorrugation extend parallel to two edges of the original sheet. yIn suchevent, the lines of corrugation extend at 45 degrees to the scoring lines which define the bottom, side and end walls, and side and end cover flaps, so that in the finished container the fold at no one of these lines is weakened by extending parallel to a line of corrugation: and the same diagonal relationship of scoring lines and lines of corrugation prevails at the junction at the pairs of corner iiaps with their respective side and endvwalls.

In closing the container, it has been set forth above that vthe side and cover flaps are folded down into two parallel planes which overlap, and thus the cover flaps may be closed and secured together by a standard closing machine having cement rolls, this cement being applied for example between the dotted lines X-X in Figure 3. The central butt joint of the cover Aflaps CS1, CS2 may be closed if desired by 'application of the tape T shown in dotted lines in Figure 3. The free arrangement of the cover flaps, with respect to one another, lends itself to closing in the standard closing machine, especially in the preferred form where the inner plane is formed of cover flaps CE1, CE2 which are prevented from downward movement into the container by their support by the pairs of corner flaps SFll-EFll as shown in Figure 5.

The modied form of blank shown in Figure 7 differs from that of Figure 1 in that the notches 11 are not cut out, but in lieu thereof scoring lines 20 are provided extendingat a right angle to the adjacent edge of the original blank, while the scoring lines for the end walls E1,YE2, are extended. In folding thisblank, the-corner ilaps EFll, SF11-,vetc., may befoldedinward as be- The container has closed bottom' edges and vertical edges, and is hence adapted for fore, and thus the gusset pieces G11- P111 at either side of each scoring line 20 constitutes a substantially vertical flap when the box is assembled as by the staples 15 (Figure 8) so that the box may be loaded with bulk material, and then placed on a shakingor vibrating machine to cause the material to settle down into the body of the container. These gusset members thus serve to prevent'spilling at the corner of the container. It will be understood that the flaps CS1, CS2, usually extend vertically and thus closely parallel the gusset members during the filling and shaking operations.

When the -shaking operation has been completed, the container may be passed through the usual closing machine, where the score line 20 at each corner serves to facilitate the bending of the gussets until the gussset members G11-H11 `lie parallel to one another, and are usually supported upon the top of the material, in the position shown in Figure 9. During this operation the end flaps CE1, CE2 have been folded down to partly close the container, and the closin'g is then completed in the machine by applying the usual cement, and then folding down the side cover ilaps CS1, CS2, inthe usual way.

It will be noted that in each instance the vertical corners of the box are selvedge, i. e. they do not expose raw edges of material, and further that the upper edges are likewise smooth where they fold down onto the material within the container. Y Obviously, the illustrated forms are not the only ones which may be employed, and the corner flaps may be folded in other ways than those indicated, While still preserving the advantages of the selvedge edges. In the illustrated form,fthe exterior of the box isfree at its two ends and two sides for advertising matter, which may be placed on'the blank-before it is folded: although obviously in other forms the interior of the container maybe left free for the accommodation of goods of particular shapes.

It will be noted that the originall blank may be of corrugatedmaterial, with the corrugations extending parallel to two opposed edges of the blank, andthen the lines of corrugations will extend diagonally across the score lines separating the bottom, side, end,- etc. walls, so that inthe finishedy container' the edges are substantially of the same strength, and thecorrugations then may appear as indicated by the wavy lines showing at the edges of the blank in Figure 2.

Other changes may be made without departing fromnthe scope of the appended claims.

i Havingthus described my invention, what I claim as new and desire to secure by Letters Patent, iszy,

1. A container formed from an originally square blank and comprising integral bottom, vertical side and end walls, side and end cover flaps, and pairs of corner flaps integrally joined to adjacent side and end walls, said corner aps in each `pair being joined along a folding line,` each pair of vcorner aps beinglocated against andsecured to the inside of a side wall ofthe container whereby to form a container body which is entirely closed along its bottom and vertical'edges, all said pairs being parallel and having top edges at the level of the joint between the end walls and the end cover flaps whereby the pairs of corner flaps provide supportsfor said end cover naps in a single plane, said side cover flaps inthe said end cover flaps and closing the container.

Cil

2. A container formed from an originally square blank and comprising integral bottom, vertical side and end walls, said end walls having a lesser side-to-side dimension than the distance between the side walls, side and end cover aps, and pairs of corner aps integrally joined to adjacent side and end walls, said corner flaps in each pair being joined along a folding line, each pair of corner ilaps being located against and secured to the inside of a side wall of the container whereby to form a container body which is entirely closed along its bottom and verticalk edges, all said pairs being parallel and having top edges at the level of the joint between the end walls and the end cover ilaps whereby the pairs of corner ilaps provide supports `for said end cover flaps in a single plane, said side cover naps in the closed container overlying and being secured to said end cover aps and closing the container, said end cover flaps having a greater side-to-side dimension, than said end, walls whereby to rest on top of said pairs of corner flaps.

3. A container formed from an originally square blank and comprising integral bottom, vertical side and end walls, side and end cover flaps, and pairs of corner flaps integrally joined to adjacent side and end walls, said corner ilaps in each pair being joined along a folding line, each pair of corner flaps being located against and secured to the inside of a side wall of the container whereby to form a container body which is entirely closed along its bottom and vertical edges, all said pairs being parallel and having top edges at the level of the joint between the end walls and the end cover i'laps whereby the pairs of corner flaps provide supports for said end cover flaps in a single plane, each of said cover flaps having free edges and being joined only to the vertical wall adjacent it whereby all the cover ilaps may be folded about the top edges of said vertical walls for closing and sealing by a standard closing machine, said side cover ilaps in the closed container overlying and being secured to said end cover flaps and closing the container. Y

4. A container formed from an originally square blank and comprising integral bottom, vertical side and end walls, side and end cover flaps, and pairs of corner flaps integrally joined to adjacent side and end walls, said corner flaps in each pair being joined along a folding line, each pair of corner aps being located against and secured to the inside of a side wall of the container whereby to form a container body entirely closed at its bottom and vertical edges, all said pairs being parallel and having top edges at the level of the joint between the end walls and the end cover ilaps whereby the pairs of corner flaps provide supports for said end cover flaps in a single plane, and gusset members in integrally joined pairs, each pair being integrally joined to said end cover ilaps and said corner flaps and providing when said cover flaps are open extensions of said vertical walls at the vertical edges of the container body and in the closed container underlying and supporting the end cover flaps, said side cover flaps in the closed container overlying and being secured to said end cover flaps and closing the container.

EDGAR WA'rsoN. j 

